Bumps [rubocop-rails](https://github.com/rubocop-hq/rubocop-rails) from 2.0.1 to 2.2.0.
- [Release notes](https://github.com/rubocop-hq/rubocop-rails/releases)
- [Changelog](https://github.com/rubocop-hq/rubocop-rails/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rubocop-hq/rubocop-rails/compare/v2.0.1...v2.2.0)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>